{-----------------------------------------------------------------------------
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1.1.html

Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either expressed or implied. See the License for
the specific language governing rights and limitations under the License.

The Original Code is: JvExControls.pas, released on 2004-01-04

The Initial Developer of the Original Code is Andreas Hausladen [Andreas dott Hausladen att gmx dott de]
Portions created by Andreas Hausladen are Copyright (C) 2004 Andreas Hausladen.
All Rights Reserved.

Contributor(s): -
               dejoy.

You may retrieve the latest version of this file at the Project JEDI's JVCL home page,
located at http://jvcl.sourceforge.net

Known Issues:
-----------------------------------------------------------------------------}
// $Id: JvExControls.pas 11407 2007-07-05 17:11:35Z ahuser $

unit JvExControls;

{$I jvcl.inc}

{*****************************************************************************
 * WARNING: Do not edit this file.
 * This file is autogenerated from the source in devtools/JvExVCL/src.
 * If you do it despite this warning your changes will be discarded by the next
 * update of this file. Do your changes in the template files.
 ****************************************************************************}
{$D-} // do not step into this unit

interface

uses
  Windows, Messages,
  {$IFDEF HAS_UNIT_TYPES}
  Types,
  {$ENDIF HAS_UNIT_TYPES}
  {$IFDEF CLR}
  System.Runtime.InteropServices,
  {$ENDIF CLR}
  SysUtils, Classes, Graphics, Controls, Forms,
  {$IFDEF COMPILER5}
  JvVCL5Utils,
  {$ENDIF COMPILER5}
  {$IFDEF UNITVERSIONING}
  JclUnitVersioning,
  {$ENDIF UNITVERSIONING}
  JvTypes, JvThemes, JVCLVer;

type
  TDlgCode =
   (dcWantAllKeys, dcWantArrows, dcWantChars, dcButton, dcHasSetSel, dcWantTab,
    dcNative); // if dcNative is in the set the native allowed keys are used and GetDlgCode is ignored
  TDlgCodes = set of TDlgCode;

const
  dcWantMessage = dcWantAllKeys;

const
  CM_DENYSUBCLASSING = JvThemes.CM_DENYSUBCLASSING;
  CM_PERFORM = CM_BASE + $500 + 0; // LParam: "Msg: ^TMessage"
  CM_SETAUTOSIZE = CM_BASE + $500 + 1; // WParam: "Value: Boolean"

type
  TJvHotTrackOptions = class;

  { IJvExControl is used for the identification of an JvExXxx control. }
  IJvExControl = interface
    ['{8E6579C3-D683-4562-AFAB-D23C8526E386}']
  end;

  { Add IJvDenySubClassing to the base class list if the control should not
    be themed by the ThemeManager (http://www.soft-gems.net Mike Lischke).
    This only works with JvExVCL derived classes. }
  IJvDenySubClassing = interface
    ['{76942BC0-2A6E-4DC4-BFC9-8E110DB7F601}']
  end;


  { IJvHotTrack is Specifies whether Control are highlighted when the mouse passes over them}
  IJvHotTrack = interface
    ['{8F1B40FB-D8E3-46FE-A7A3-21CE4B199A8F}']

    function GetHotTrack:Boolean;
    function GetHotTrackFont:TFont;
    function GetHotTrackFontOptions:TJvTrackFontOptions;
    function GetHotTrackOptions:TJvHotTrackOptions;

    procedure SetHotTrack(Value: Boolean);
    procedure SetHotTrackFont(Value: TFont);
    procedure SetHotTrackFontOptions(Value: TJvTrackFontOptions);
    procedure SetHotTrackOptions(Value: TJvHotTrackOptions);

    property HotTrack: Boolean read GetHotTrack write SetHotTrack;
    property HotTrackFont: TFont read GetHotTrackFont write SetHotTrackFont;
    property HotTrackFontOptions: TJvTrackFontOptions read GetHotTrackFontOptions write SetHotTrackFontOptions;
    property HotTrackOptions: TJvHotTrackOptions read GetHotTrackOptions write SetHotTrackOptions;
  end;

  TJvHotTrackOptions = class(TJvPersistentProperty)
  private
    FEnabled: Boolean;
    FFrameVisible: Boolean;
    FColor: TColor;
    FFrameColor: TColor;
    procedure SetColor(Value: TColor);
    procedure SetEnabled(Value: Boolean);
    procedure SetFrameColor(Value: TColor);
    procedure SetFrameVisible(Value: Boolean);
  public
    constructor Create; virtual;
    procedure Assign(Source: TPersistent); override;
  published
    property Enabled: Boolean read FEnabled write SetEnabled default False;
    property Color: TColor read FColor write SetColor default $00D2BDB6;
    property FrameVisible: Boolean read FFrameVisible write SetFrameVisible default False;
    property FrameColor: TColor read FFrameColor write SetFrameColor default $006A240A;
  end;

  TStructPtrMessage = class(TObject)
  private
    {$IFDEF CLR}
    FBuf: IntPtr;
    FLParam: &Object;
    {$ENDIF CLR}
  public
    Msg: TMessage;
    constructor Create(Msg: Integer; WParam: Integer; var LParam);
    {$IFDEF CLR}
    destructor Destroy; override;
    {$ENDIF CLR}
  end;

procedure SetDotNetFrameColors(FocusedColor, UnfocusedColor: TColor);
procedure DrawDotNetControl(Control: TWinControl; AColor: TColor; InControl: Boolean);
procedure HandleDotNetHighlighting(Control: TWinControl; const Msg: TMessage;
  MouseOver: Boolean; Color: TColor);

function CreateWMMessage(Msg: Integer; WParam: Integer; LParam: Longint): TMessage; overload; {$IFDEF SUPPORTS_INLINE} inline {$ENDIF}
function CreateWMMessage(Msg: Integer; WParam: Integer; LParam: TControl): TMessage; overload; {$IFDEF SUPPORTS_INLINE} inline {$ENDIF}
function SmallPointToLong(const Pt: TSmallPoint): Longint; {$IFDEF SUPPORTS_INLINE} inline {$ENDIF}
function ShiftStateToKeyData(Shift: TShiftState): Longint;
function GetFocusedControl(AControl: TControl): TWinControl;
function DlgcToDlgCodes(Value: Longint): TDlgCodes;
function DlgCodesToDlgc(Value: TDlgCodes): Longint;
procedure GetHintColor(var HintInfo: THintInfo; AControl: TControl; HintColor: TColor);
function DispatchIsDesignMsg(Control: TControl; var Msg: TMessage): Boolean;

{$IFDEF COMPILER5}
procedure TOpenControl_SetAutoSize(AControl: TControl; Value: Boolean);
{$ENDIF COMPILER5}

type
  TJvExControl = class(TControl, IJvExControl)
  private
    FAboutJVCL: TJVCLAboutInfo;
    FHintColor: TColor;
    FMouseOver: Boolean;
    FHintWindowClass: THintWindowClass;
    FOnMouseEnter: TNotifyEvent;
    FOnMouseLeave: TNotifyEvent;
    FOnParentColorChanged: TNotifyEvent;
    function BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer; overload;
    function BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer; overload;
    function BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
  protected
    procedure WndProc(var Msg: TMessage); override;
    {$IFNDEF CLR}
    procedure FocusChanged(AControl: TWinControl); dynamic;
    {$ENDIF !CLR}
    procedure VisibleChanged; reintroduce; dynamic;
    procedure EnabledChanged; reintroduce; dynamic;
    procedure TextChanged; reintroduce; virtual;
    procedure ColorChanged; reintroduce; dynamic;
    procedure FontChanged; reintroduce; dynamic;
    procedure ParentFontChanged; reintroduce; dynamic;
    procedure ParentColorChanged; reintroduce; dynamic;
    procedure ParentShowHintChanged; reintroduce; dynamic;
    function WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean; reintroduce; virtual;
    function HintShow(var HintInfo: THintInfo): Boolean; reintroduce; dynamic;
    function HitTest(X, Y: Integer): Boolean; reintroduce; virtual;
    procedure MouseEnter(AControl: TControl); reintroduce; dynamic;
    procedure MouseLeave(AControl: TControl); reintroduce; dynamic;
    {$IFDEF COMPILER5}
    {$IFNDEF HASAUTOSIZE}
    procedure CMSetAutoSize(var Msg: TMessage); message CM_SETAUTOSIZE;
    procedure SetAutoSize(Value: Boolean); virtual;
    {$ENDIF !HASAUTOSIZE}
    {$ENDIF COMPILER5}
    property MouseOver: Boolean read FMouseOver write FMouseOver;
    property HintColor: TColor read FHintColor write FHintColor default clDefault;
    property OnMouseEnter: TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
    property OnMouseLeave: TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
    property OnParentColorChange: TNotifyEvent read FOnParentColorChanged write FOnParentColorChanged;
  public
    constructor Create(AOwner: TComponent); override;
    property HintWindowClass: THintWindowClass read FHintWindowClass write FHintWindowClass;
  published
    property AboutJVCL: TJVCLAboutInfo read FAboutJVCL write FAboutJVCL stored False;
  end;

  TJvExWinControl = class(TWinControl, IJvExControl)
  private
    FAboutJVCL: TJVCLAboutInfo;
    FHintColor: TColor;
    FMouseOver: Boolean;
    FHintWindowClass: THintWindowClass;
    FOnMouseEnter: TNotifyEvent;
    FOnMouseLeave: TNotifyEvent;
    FOnParentColorChanged: TNotifyEvent;
    function BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer; overload;
    function BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer; overload;
    function BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
  protected
    procedure WndProc(var Msg: TMessage); override;
    {$IFNDEF CLR}
    procedure FocusChanged(AControl: TWinControl); dynamic;
    {$ENDIF !CLR}
    procedure VisibleChanged; reintroduce; dynamic;
    procedure EnabledChanged; reintroduce; dynamic;
    procedure TextChanged; reintroduce; virtual;
    procedure ColorChanged; reintroduce; dynamic;
    procedure FontChanged; reintroduce; dynamic;
    procedure ParentFontChanged; reintroduce; dynamic;
    procedure ParentColorChanged; reintroduce; dynamic;
    procedure ParentShowHintChanged; reintroduce; dynamic;
    function WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean; reintroduce; virtual;
    function HintShow(var HintInfo: THintInfo): Boolean; reintroduce; dynamic;
    function HitTest(X, Y: Integer): Boolean; reintroduce; virtual;
    procedure MouseEnter(AControl: TControl); reintroduce; dynamic;
    procedure MouseLeave(AControl: TControl); reintroduce; dynamic;
    {$IFDEF COMPILER5}
    {$IFNDEF HASAUTOSIZE}
    procedure CMSetAutoSize(var Msg: TMessage); message CM_SETAUTOSIZE;
    procedure SetAutoSize(Value: Boolean); virtual;
    {$ENDIF !HASAUTOSIZE}
    {$ENDIF COMPILER5}
    property MouseOver: Boolean read FMouseOver write FMouseOver;
    property HintColor: TColor read FHintColor write FHintColor default clDefault;
    property OnMouseEnter: TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
    property OnMouseLeave: TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
    property OnParentColorChange: TNotifyEvent read FOnParentColorChanged write FOnParentColorChanged;
  public
    constructor Create(AOwner: TComponent); override;
    property HintWindowClass: THintWindowClass read FHintWindowClass write FHintWindowClass;
  published
    property AboutJVCL: TJVCLAboutInfo read FAboutJVCL write FAboutJVCL stored False;
  private
    FDotNetHighlighting: Boolean;
  protected
    procedure BoundsChanged; reintroduce; virtual;
    procedure CursorChanged; reintroduce; dynamic;
    procedure ShowingChanged; reintroduce; dynamic;
    procedure ShowHintChanged; reintroduce; dynamic;
    {$IFNDEF CLR}
    procedure ControlsListChanging(Control: TControl; Inserting: Boolean); reintroduce; dynamic;
    procedure ControlsListChanged(Control: TControl; Inserting: Boolean); reintroduce; dynamic;
    {$ENDIF !CLR}
    procedure GetDlgCode(var Code: TDlgCodes); virtual;
    procedure FocusSet(PrevWnd: THandle); virtual;
    procedure FocusKilled(NextWnd: THandle); virtual;
    function DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean; virtual;
  {$IFDEF JVCLThemesEnabledD56}
  private
    function GetParentBackground: Boolean;
  protected
    procedure SetParentBackground(Value: Boolean); virtual;
    property ParentBackground: Boolean read GetParentBackground write SetParentBackground;
  {$ENDIF JVCLThemesEnabledD56}
  published
    property DotNetHighlighting: Boolean read FDotNetHighlighting write FDotNetHighlighting default False;
  end;

  TJvExCustomControl = class(TCustomControl, IJvExControl)
  private
    FAboutJVCL: TJVCLAboutInfo;
    FHintColor: TColor;
    FMouseOver: Boolean;
    FHintWindowClass: THintWindowClass;
    FOnMouseEnter: TNotifyEvent;
    FOnMouseLeave: TNotifyEvent;
    FOnParentColorChanged: TNotifyEvent;
    function BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer; overload;
    function BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer; overload;
    function BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
  protected
    procedure WndProc(var Msg: TMessage); override;
    {$IFNDEF CLR}
    procedure FocusChanged(AControl: TWinControl); dynamic;
    {$ENDIF !CLR}
    procedure VisibleChanged; reintroduce; dynamic;
    procedure EnabledChanged; reintroduce; dynamic;
    procedure TextChanged; reintroduce; virtual;
    procedure ColorChanged; reintroduce; dynamic;
    procedure FontChanged; reintroduce; dynamic;
    procedure ParentFontChanged; reintroduce; dynamic;
    procedure ParentColorChanged; reintroduce; dynamic;
    procedure ParentShowHintChanged; reintroduce; dynamic;
    function WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean; reintroduce; virtual;
    function HintShow(var HintInfo: THintInfo): Boolean; reintroduce; dynamic;
    function HitTest(X, Y: Integer): Boolean; reintroduce; virtual;
    procedure MouseEnter(AControl: TControl); reintroduce; dynamic;
    procedure MouseLeave(AControl: TControl); reintroduce; dynamic;
    {$IFDEF COMPILER5}
    {$IFNDEF HASAUTOSIZE}
    procedure CMSetAutoSize(var Msg: TMessage); message CM_SETAUTOSIZE;
    procedure SetAutoSize(Value: Boolean); virtual;
    {$ENDIF !HASAUTOSIZE}
    {$ENDIF COMPILER5}
    property MouseOver: Boolean read FMouseOver write FMouseOver;
    property HintColor: TColor read FHintColor write FHintColor default clDefault;
    property OnMouseEnter: TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
    property OnMouseLeave: TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
    property OnParentColorChange: TNotifyEvent read FOnParentColorChanged write FOnParentColorChanged;
  public
    constructor Create(AOwner: TComponent); override;
    property HintWindowClass: THintWindowClass read FHintWindowClass write FHintWindowClass;
  published
    property AboutJVCL: TJVCLAboutInfo read FAboutJVCL write FAboutJVCL stored False;
  private
    FDotNetHighlighting: Boolean;
  protected
    procedure BoundsChanged; reintroduce; virtual;
    procedure CursorChanged; reintroduce; dynamic;
    procedure ShowingChanged; reintroduce; dynamic;
    procedure ShowHintChanged; reintroduce; dynamic;
    {$IFNDEF CLR}
    procedure ControlsListChanging(Control: TControl; Inserting: Boolean); reintroduce; dynamic;
    procedure ControlsListChanged(Control: TControl; Inserting: Boolean); reintroduce; dynamic;
    {$ENDIF !CLR}
    procedure GetDlgCode(var Code: TDlgCodes); virtual;
    procedure FocusSet(PrevWnd: THandle); virtual;
    procedure FocusKilled(NextWnd: THandle); virtual;
    function DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean; virtual;
  {$IFDEF JVCLThemesEnabledD56}
  private
    function GetParentBackground: Boolean;
  protected
    procedure SetParentBackground(Value: Boolean); virtual;
    property ParentBackground: Boolean read GetParentBackground write SetParentBackground;
  {$ENDIF JVCLThemesEnabledD56}
  published
    property DotNetHighlighting: Boolean read FDotNetHighlighting write FDotNetHighlighting default False;
  end;

  TJvExGraphicControl = class(TGraphicControl, IJvExControl)
  private
    FAboutJVCL: TJVCLAboutInfo;
    FHintColor: TColor;
    FMouseOver: Boolean;
    FHintWindowClass: THintWindowClass;
    FOnMouseEnter: TNotifyEvent;
    FOnMouseLeave: TNotifyEvent;
    FOnParentColorChanged: TNotifyEvent;
    function BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer; overload;
    function BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer; overload;
    function BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
  protected
    procedure WndProc(var Msg: TMessage); override;
    {$IFNDEF CLR}
    procedure FocusChanged(AControl: TWinControl); dynamic;
    {$ENDIF !CLR}
    procedure VisibleChanged; reintroduce; dynamic;
    procedure EnabledChanged; reintroduce; dynamic;
    procedure TextChanged; reintroduce; virtual;
    procedure ColorChanged; reintroduce; dynamic;
    procedure FontChanged; reintroduce; dynamic;
    procedure ParentFontChanged; reintroduce; dynamic;
    procedure ParentColorChanged; reintroduce; dynamic;
    procedure ParentShowHintChanged; reintroduce; dynamic;
    function WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean; reintroduce; virtual;
    function HintShow(var HintInfo: THintInfo): Boolean; reintroduce; dynamic;
    function HitTest(X, Y: Integer): Boolean; reintroduce; virtual;
    procedure MouseEnter(AControl: TControl); reintroduce; dynamic;
    procedure MouseLeave(AControl: TControl); reintroduce; dynamic;
    {$IFDEF COMPILER5}
    {$IFNDEF HASAUTOSIZE}
    procedure CMSetAutoSize(var Msg: TMessage); message CM_SETAUTOSIZE;
    procedure SetAutoSize(Value: Boolean); virtual;
    {$ENDIF !HASAUTOSIZE}
    {$ENDIF COMPILER5}
    property MouseOver: Boolean read FMouseOver write FMouseOver;
    property HintColor: TColor read FHintColor write FHintColor default clDefault;
    property OnMouseEnter: TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
    property OnMouseLeave: TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
    property OnParentColorChange: TNotifyEvent read FOnParentColorChanged write FOnParentColorChanged;
  public
    constructor Create(AOwner: TComponent); override;
    property HintWindowClass: THintWindowClass read FHintWindowClass write FHintWindowClass;
  published
    property AboutJVCL: TJVCLAboutInfo read FAboutJVCL write FAboutJVCL stored False;
  end;

  TJvExHintWindow = class(THintWindow, IJvExControl)
  private
    FAboutJVCL: TJVCLAboutInfo;
    FHintColor: TColor;
    FMouseOver: Boolean;
    FHintWindowClass: THintWindowClass;
    FOnMouseEnter: TNotifyEvent;
    FOnMouseLeave: TNotifyEvent;
    FOnParentColorChanged: TNotifyEvent;
    function BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer; overload;
    function BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer; overload;
    function BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
  protected
    procedure WndProc(var Msg: TMessage); override;
    {$IFNDEF CLR}
    procedure FocusChanged(AControl: TWinControl); dynamic;
    {$ENDIF !CLR}
    procedure VisibleChanged; reintroduce; dynamic;
    procedure EnabledChanged; reintroduce; dynamic;
    procedure TextChanged; reintroduce; virtual;
    procedure ColorChanged; reintroduce; dynamic;
    procedure FontChanged; reintroduce; dynamic;
    procedure ParentFontChanged; reintroduce; dynamic;
    procedure ParentColorChanged; reintroduce; dynamic;
    procedure ParentShowHintChanged; reintroduce; dynamic;
    function WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean; reintroduce; virtual;
    function HintShow(var HintInfo: THintInfo): Boolean; reintroduce; dynamic;
    function HitTest(X, Y: Integer): Boolean; reintroduce; virtual;
    procedure MouseEnter(AControl: TControl); reintroduce; dynamic;
    procedure MouseLeave(AControl: TControl); reintroduce; dynamic;
    {$IFDEF COMPILER5}
    {$IFNDEF HASAUTOSIZE}
    procedure CMSetAutoSize(var Msg: TMessage); message CM_SETAUTOSIZE;
    procedure SetAutoSize(Value: Boolean); virtual;
    {$ENDIF !HASAUTOSIZE}
    {$ENDIF COMPILER5}
    property MouseOver: Boolean read FMouseOver write FMouseOver;
    property HintColor: TColor read FHintColor write FHintColor default clDefault;
    property OnMouseEnter: TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
    property OnMouseLeave: TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
    property OnParentColorChange: TNotifyEvent read FOnParentColorChanged write FOnParentColorChanged;
  public
    constructor Create(AOwner: TComponent); override;
    property HintWindowClass: THintWindowClass read FHintWindowClass write FHintWindowClass;
  published
    property AboutJVCL: TJVCLAboutInfo read FAboutJVCL write FAboutJVCL stored False;
  private
    FDotNetHighlighting: Boolean;
  protected
    procedure BoundsChanged; reintroduce; virtual;
    procedure CursorChanged; reintroduce; dynamic;
    procedure ShowingChanged; reintroduce; dynamic;
    procedure ShowHintChanged; reintroduce; dynamic;
    {$IFNDEF CLR}
    procedure ControlsListChanging(Control: TControl; Inserting: Boolean); reintroduce; dynamic;
    procedure ControlsListChanged(Control: TControl; Inserting: Boolean); reintroduce; dynamic;
    {$ENDIF !CLR}
    procedure GetDlgCode(var Code: TDlgCodes); virtual;
    procedure FocusSet(PrevWnd: THandle); virtual;
    procedure FocusKilled(NextWnd: THandle); virtual;
    function DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean; virtual;
  {$IFDEF JVCLThemesEnabledD56}
  private
    function GetParentBackground: Boolean;
  protected
    procedure SetParentBackground(Value: Boolean); virtual;
    property ParentBackground: Boolean read GetParentBackground write SetParentBackground;
  {$ENDIF JVCLThemesEnabledD56}
  published
    property DotNetHighlighting: Boolean read FDotNetHighlighting write FDotNetHighlighting default False;
  end;

  TJvExPubGraphicControl = class(TJvExGraphicControl)
  published
    property BiDiMode;
    property DragCursor;
    property DragKind;
    property DragMode;
    property ParentBiDiMode;
    property OnEndDock;
    property OnStartDock;
  end;

{$IFDEF UNITVERSIONING}
const
  UnitVersioning: TUnitVersionInfo = (
    RCSfile: '$URL: https://jvcl.svn.sourceforge.net/svnroot/jvcl/branches/JVCL3_33_PREPARATION/run/JvExControls.pas $';
    Revision: '$Revision: 11407 $';
    Date: '$Date: 2007-07-05 19:11:35 +0200 (jeu., 05 juil. 2007) $';
    LogPath: 'JVCL\run'
  );
{$ENDIF UNITVERSIONING}

implementation

uses
  TypInfo;

var
  InternalFocusedColor: TColor = TColor($00733800);
  InternalUnfocusedColor: TColor = clGray;

procedure SetDotNetFrameColors(FocusedColor, UnfocusedColor: TColor);
begin
  InternalFocusedColor := FocusedColor;
  InternalUnfocusedColor := UnfocusedColor;
end;

procedure DrawDotNetControl(Control: TWinControl; AColor: TColor; InControl: Boolean);
var
  DC: HDC;
  R: TRect;
  Canvas: TCanvas;
begin
  DC := GetWindowDC(Control.Handle);
  try
    GetWindowRect(Control.Handle, R);
    OffsetRect(R, -R.Left, -R.Top);
    Canvas := TCanvas.Create;
    with Canvas do
    try
      Handle := DC;
      Brush.Color := InternalUnfocusedColor;
      if Control.Focused or InControl then
        Brush.Color := InternalFocusedColor;
      FrameRect(R);
      InflateRect(R, -1, -1);
      if not (Control.Focused or InControl) then
        Brush.Color := AColor;
      FrameRect(R);
    finally
      Free;
    end;
  finally
    ReleaseDC(Control.Handle, DC);
  end;
end;

procedure HandleDotNetHighlighting(Control: TWinControl; const Msg: TMessage;
  MouseOver: Boolean; Color: TColor);
var
  Rgn, SubRgn: HRGN;
begin
  if not (csDesigning in Control.ComponentState) then
    case Msg.Msg of
      CM_MOUSEENTER, CM_MOUSELEAVE, WM_KILLFOCUS, WM_SETFOCUS, WM_NCPAINT:
        begin
          DrawDotNetControl(Control, Color, MouseOver);
          if Msg.Msg = CM_MOUSELEAVE then
          begin
            Rgn := CreateRectRgn(0, 0, Control.Width - 1, Control.Height - 1);
            SubRgn := CreateRectRgn(2, 2, Control.Width - 3, Control.Height - 3);
            try
              CombineRgn(Rgn, Rgn, SubRgn, RGN_DIFF);
              InvalidateRgn(Control.Handle, Rgn, False); // redraw 3D border
            finally
              DeleteObject(SubRgn);
              DeleteObject(Rgn);
            end;
          end;
        end;
    end;
end;

function CreateWMMessage(Msg: Integer; WParam: Integer; LParam: Longint): TMessage;
begin
  {$IFNDEF CLR}
  Result.Msg := Msg;
  Result.WParam := WParam;
  Result.LParam := LParam;
  {$ELSE}
  Result := TMessage.Create(Msg, WParam, LParam);
  {$ENDIF CLR}
  Result.Result := 0;
end;

function CreateWMMessage(Msg: Integer; WParam: Integer; LParam: TControl): TMessage;
begin
  {$IFNDEF CLR}
  Result := CreateWMMessage(Msg, WParam, Integer(LParam));
  {$ELSE}
  Result := CreateWMMessage(Msg, WParam, 0);
  {$ENDIF !CLR}
end;

{ TStructPtrMessage }
constructor TStructPtrMessage.Create(Msg: Integer; WParam: Integer; var LParam);
begin
  inherited Create;
  {$IFNDEF CLR}
  Self.Msg.Msg := Msg;
  Self.Msg.WParam := WParam;
  Self.Msg.LParam := Longint(@LParam);
  {$ELSE}
  FBuf := Marshal.AllocHGlobal(Marshal.SizeOf(TObject(LParam)));
  FLParam := &Object(LParam);
  Marshal.StructureToPtr(FLParam, FBuf, False);
  Self.Msg := TMessage.Create(Msg, WParam, Longint(FBuf));
  {$ENDIF !CLR}
  Self.Msg.Result := 0;
end;

{$IFDEF CLR}
destructor TStructPtrMessage.Destroy;
begin
  FLParam := Marshal.PtrToStructure(FBuf, TypeOf(FLParam));
  Marshal.DestroyStructure(FBuf, TypeOf(FLParam));
  inherited Destroy;
end;
{$ENDIF CLR}

function SmallPointToLong(const Pt: TSmallPoint): Longint;
begin
  {$IFDEF CLR}
  Result := Int32(Pt.X) shl 16 or Pt.Y;
  {$ELSE}
  Result := Longint(Pt);
  {$ENDIF CLR}
end;

function ShiftStateToKeyData(Shift: TShiftState): Longint;
const
  AltMask = $20000000;
  CtrlMask = $10000000;
  ShiftMask = $08000000;
begin
  Result := 0;
  if ssAlt in Shift then
    Result := Result or AltMask;
  if ssCtrl in Shift then
    Result := Result or CtrlMask;
  if ssShift in Shift then
    Result := Result or ShiftMask;
end;

function GetFocusedControl(AControl: TControl): TWinControl;
var
  Form: TCustomForm;
begin
  Result := nil;
  Form := GetParentForm(AControl);
  if Assigned(Form) then
    Result := Form.ActiveControl;
end;

function DlgcToDlgCodes(Value: Longint): TDlgCodes;
begin
  Result := [];
  if (Value and DLGC_WANTARROWS) <> 0 then
    Include(Result, dcWantArrows);
  if (Value and DLGC_WANTTAB) <> 0 then
    Include(Result, dcWantTab);
  if (Value and DLGC_WANTALLKEYS) <> 0 then
    Include(Result, dcWantAllKeys);
  if (Value and DLGC_WANTCHARS) <> 0 then
    Include(Result, dcWantChars);
  if (Value and DLGC_BUTTON) <> 0 then
    Include(Result, dcButton);
  if (Value and DLGC_HASSETSEL) <> 0 then
    Include(Result, dcHasSetSel);
end;

function DlgCodesToDlgc(Value: TDlgCodes): Longint;
begin
  Result := 0;
  if dcWantAllKeys in Value then
    Result := Result or DLGC_WANTALLKEYS;
  if dcWantArrows in Value then
    Result := Result or DLGC_WANTARROWS;
  if dcWantTab in Value then
    Result := Result or DLGC_WANTTAB;
  if dcWantChars in Value then
    Result := Result or DLGC_WANTCHARS;
  if dcButton in Value then
    Result := Result or DLGC_BUTTON;
  if dcHasSetSel in Value then
    Result := Result or DLGC_HASSETSEL;
end;

procedure GetHintColor(var HintInfo: THintInfo; AControl: TControl; HintColor: TColor);
var
  AHintInfo: THintInfo;
begin
  case HintColor of
    clNone:
      HintInfo.HintColor := Application.HintColor;
    clDefault:
      begin
        if Assigned(AControl) and Assigned(AControl.Parent) then
        begin
          AHintInfo := HintInfo;
          {$IFNDEF CLR}
          AControl.Parent.Perform(CM_HINTSHOW, 0, Integer(@AHintInfo));
          {$ELSE}
          AControl.Parent.Perform(CM_HINTSHOW, 0, AHintInfo);
          {$ENDIF !CLR}
          HintInfo.HintColor := AHintInfo.HintColor;
        end;
      end;
  else
    HintInfo.HintColor := HintColor;
  end;
end;

function DispatchIsDesignMsg(Control: TControl; var Msg: TMessage): Boolean;
var
  Form: TCustomForm;
begin
  Result := False;
  case Msg.Msg of
    WM_SETFOCUS, WM_KILLFOCUS, WM_NCHITTEST,
    WM_MOUSEFIRST..WM_MOUSELAST,
    WM_KEYFIRST..WM_KEYLAST,
    WM_CANCELMODE:
      Exit; // These messages are handled in TWinControl.WndProc before IsDesignMsg() is called
  end;
  if (Control <> nil) and (csDesigning in Control.ComponentState) then
  begin
    Form := GetParentForm(Control);
    if (Form <> nil) and (Form.Designer <> nil) and
       Form.Designer.IsDesignMsg(Control, Msg) then
      Result := True;
  end;
end;

{$IFDEF COMPILER5}

{ Delphi 5's SetAutoSize is private and not virtual. This code installs a
  JUMP-Hook into SetAutoSize that jumps to our function. }
var
  AutoSizeOffset: Cardinal;
  TControl_SetAutoSize: Pointer;

type
  PBoolean = ^Boolean;
  TControlAccessProtected = class(TControl)
  published
    property AutoSize;
  end;

procedure OrgSetAutoSize(AControl: TControl; Value: Boolean);
asm
        DD    0, 0, 0, 0  // 16 Bytes
end;

procedure TOpenControl_SetAutoSize(AControl: TControl; Value: Boolean);
begin
  // same as OrgSetAutoSize(AControl, Value); but secure
  with TControlAccessProtected(AControl) do
    if AutoSize <> Value then
    begin
      PBoolean(Cardinal(AControl) + AutoSizeOffset)^ := Value;
      if Value then
        AdjustSize;
    end;
end;

procedure SetAutoSizeHook(AControl: TControl; Value: Boolean);
var
  Msg: TMessage;
begin
  if AControl.GetInterfaceEntry(IJvExControl) <> nil then
  begin
    Msg.Msg := CM_SETAUTOSIZE;
    Msg.WParam := Ord(Value);
    AControl.Dispatch(Msg);
  end
  else
    TOpenControl_SetAutoSize(AControl, Value);
end;

procedure InitHookVars;
var
  Info: PPropInfo;
begin
  Info := GetPropInfo(TControlAccessProtected, 'AutoSize');
  AutoSizeOffset := Integer(Info.GetProc) and $00FFFFFF;
  TControl_SetAutoSize := Info.SetProc;
end;

{$ENDIF COMPILER5}

//=== { TJvHotTrackOptions } ======================================

constructor TJvHotTrackOptions.Create;
begin
  inherited Create;
  FEnabled := False;
  FFrameVisible := False;
  FColor := $00D2BDB6;
  FFrameColor := $006A240A;
end;

procedure TJvHotTrackOptions.Assign(Source: TPersistent);
begin
  if Source is TJvHotTrackOptions then
  begin
    BeginUpdate;
    try
      Enabled := TJvHotTrackOptions(Source).Enabled;
      Color := TJvHotTrackOptions(Source).Color;
      FrameVisible := TJvHotTrackOptions(Source).FrameVisible;
      FrameColor := TJvHotTrackOptions(Source).FrameColor;
    finally
      EndUpdate;
    end;
  end
  else
    inherited Assign(Source);
end;

procedure TJvHotTrackOptions.SetColor(Value: TColor);
begin
  if FColor <> Value then
  begin
    Changing;
    ChangingProperty('Color');
    FColor := Value;
    ChangedProperty('Color');
    Changed;
  end;
end;

procedure TJvHotTrackOptions.SetEnabled(Value: Boolean);
begin
  if FEnabled <> Value then
  begin
    Changing;
    ChangingProperty('Enabled');
    FEnabled := Value;
    ChangedProperty('Enabled');
    Changed;
  end;
end;

procedure TJvHotTrackOptions.SetFrameVisible(Value: Boolean);
begin
  if FFrameVisible <> Value then
  begin
    Changing;
    ChangingProperty('FrameVisible');
    FFrameVisible := Value;
    ChangedProperty('FrameVisible');
    Changed;
  end;
end;

procedure TJvHotTrackOptions.SetFrameColor(Value: TColor);
begin
  if FFrameColor <> Value then
  begin
    Changing;
    ChangingProperty('FrameColor');
    FFrameColor := Value;
    ChangedProperty('FrameColor');
    Changed;
  end;
end;

//============================================================================

constructor TJvExControl.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  FHintColor := clDefault;
end;

function TJvExControl.BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExControl.BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExControl.BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
var
  Mesg: TStructPtrMessage;
begin
  Mesg := TStructPtrMessage.Create(Msg, WParam, LParam);
  try
    inherited WndProc(Mesg.Msg);
  finally
    Result := Mesg.Msg.Result;
    Mesg.Free;
  end;
end;

procedure TJvExControl.VisibleChanged;
begin
  BaseWndProc(CM_VISIBLECHANGED);
end;

procedure TJvExControl.EnabledChanged;
begin
  BaseWndProc(CM_ENABLEDCHANGED);
end;

procedure TJvExControl.TextChanged;
begin
  BaseWndProc(CM_TEXTCHANGED);
end;

procedure TJvExControl.FontChanged;
begin
  BaseWndProc(CM_FONTCHANGED);
end;

procedure TJvExControl.ColorChanged;
begin
  BaseWndProc(CM_COLORCHANGED);
end;

procedure TJvExControl.ParentFontChanged;
begin
  BaseWndProc(CM_PARENTFONTCHANGED);
end;

procedure TJvExControl.ParentColorChanged;
begin
  BaseWndProc(CM_PARENTCOLORCHANGED);
  if Assigned(OnParentColorChange) then
    OnParentColorChange(Self);
end;

procedure TJvExControl.ParentShowHintChanged;
begin
  BaseWndProc(CM_PARENTSHOWHINTCHANGED);
end;

function TJvExControl.WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean;
begin
  Result := BaseWndProc(CM_DIALOGCHAR, Word(Key), ShiftStateToKeyData(Shift)) <> 0;
end;

function TJvExControl.HitTest(X, Y: Integer): Boolean;
begin
  Result := BaseWndProc(CM_HITTEST, 0, SmallPointToLong(PointToSmallPoint(Point(X, Y)))) <> 0;
end;

function TJvExControl.HintShow(var HintInfo: THintInfo): Boolean;
begin
  GetHintColor(HintInfo, Self, FHintColor);
  if FHintWindowClass <> nil then
    HintInfo.HintWindowClass := FHintWindowClass;
  Result := BaseWndProcEx(CM_HINTSHOW, 0, HintInfo) <> 0;
end;

procedure TJvExControl.MouseEnter(AControl: TControl);
begin
  FMouseOver := True;
  if Assigned(FOnMouseEnter) then
    FOnMouseEnter(Self);
  BaseWndProc(CM_MOUSEENTER, 0, AControl);
end;

procedure TJvExControl.MouseLeave(AControl: TControl);
begin
  FMouseOver := False;
  BaseWndProc(CM_MOUSELEAVE, 0, AControl);
  if Assigned(FOnMouseLeave) then
    FOnMouseLeave(Self);
end;

{$IFNDEF CLR}
procedure TJvExControl.FocusChanged(AControl: TWinControl);
begin
  BaseWndProc(CM_FOCUSCHANGED, 0, AControl);
end;
{$ENDIF !CLR}

{$IFDEF COMPILER5}
{$IFNDEF HASAUTOSIZE}

procedure TJvExControl.CMSetAutoSize(var Msg: TMessage);
begin
  SetAutoSize(Msg.WParam <> 0);
end;

procedure TJvExControl.SetAutoSize(Value: Boolean);
begin
  TOpenControl_SetAutoSize(Self, Value);
end;

{$ENDIF !HASAUTOSIZE}
{$ENDIF COMPILER5}

procedure TJvExControl.WndProc(var Msg: TMessage);
{$IFDEF CLR}
var
  AHintInfo: THintInfo;
{$ENDIF CLR}
begin
  if not DispatchIsDesignMsg(Self, Msg) then
  case Msg.Msg of
    CM_DENYSUBCLASSING:
      {$IFNDEF CLR}
      Msg.Result := Ord(GetInterfaceEntry(IJvDenySubClassing) <> nil);
      {$ELSE}
      Msg.Result := Integer(Supports(Self, IJvDenySubClassing));
      {$ENDIF !CLR}
    CM_DIALOGCHAR:
      with TCMDialogChar{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Ord(WantKey(CharCode, KeyDataToShiftState(KeyData), WideChar(CharCode)));
    CM_HINTSHOW:
      {$IFNDEF CLR}
      with TCMHintShow(Msg) do
        Result := Integer(HintShow(HintInfo^));
      {$ELSE}
      with TCMHintShow.Create(Msg) do
      begin
        AHintInfo := HintInfo;
        Result := Integer(HintShow(AHintInfo));
        HintInfo := AHintInfo;
      end;
      {$ENDIF !CLR}
    CM_HITTEST:
      with TCMHitTest{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Integer(HitTest(XPos, YPos));
    CM_MOUSEENTER:
      MouseEnter({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_MOUSELEAVE:
      MouseLeave({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_VISIBLECHANGED:
      VisibleChanged;
    CM_ENABLEDCHANGED:
      EnabledChanged;
    CM_TEXTCHANGED:
      TextChanged;
    CM_FONTCHANGED:
      FontChanged;
    CM_COLORCHANGED:
      ColorChanged;
    {$IFNDEF CLR}
    CM_FOCUSCHANGED:
      FocusChanged(TWinControl(Msg.LParam));
    {$ENDIF !CLR}
    CM_PARENTFONTCHANGED:
      ParentFontChanged;
    CM_PARENTCOLORCHANGED:
      ParentColorChanged;
    CM_PARENTSHOWHINTCHANGED:
      ParentShowHintChanged;
  else
    inherited WndProc(Msg);
  end;
end;

//============================================================================

constructor TJvExWinControl.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  FHintColor := clDefault;
end;

function TJvExWinControl.BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExWinControl.BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExWinControl.BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
var
  Mesg: TStructPtrMessage;
begin
  Mesg := TStructPtrMessage.Create(Msg, WParam, LParam);
  try
    inherited WndProc(Mesg.Msg);
  finally
    Result := Mesg.Msg.Result;
    Mesg.Free;
  end;
end;

procedure TJvExWinControl.VisibleChanged;
begin
  BaseWndProc(CM_VISIBLECHANGED);
end;

procedure TJvExWinControl.EnabledChanged;
begin
  BaseWndProc(CM_ENABLEDCHANGED);
end;

procedure TJvExWinControl.TextChanged;
begin
  BaseWndProc(CM_TEXTCHANGED);
end;

procedure TJvExWinControl.FontChanged;
begin
  BaseWndProc(CM_FONTCHANGED);
end;

procedure TJvExWinControl.ColorChanged;
begin
  BaseWndProc(CM_COLORCHANGED);
end;

procedure TJvExWinControl.ParentFontChanged;
begin
  BaseWndProc(CM_PARENTFONTCHANGED);
end;

procedure TJvExWinControl.ParentColorChanged;
begin
  BaseWndProc(CM_PARENTCOLORCHANGED);
  if Assigned(OnParentColorChange) then
    OnParentColorChange(Self);
end;

procedure TJvExWinControl.ParentShowHintChanged;
begin
  BaseWndProc(CM_PARENTSHOWHINTCHANGED);
end;

function TJvExWinControl.WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean;
begin
  Result := BaseWndProc(CM_DIALOGCHAR, Word(Key), ShiftStateToKeyData(Shift)) <> 0;
end;

function TJvExWinControl.HitTest(X, Y: Integer): Boolean;
begin
  Result := BaseWndProc(CM_HITTEST, 0, SmallPointToLong(PointToSmallPoint(Point(X, Y)))) <> 0;
end;

function TJvExWinControl.HintShow(var HintInfo: THintInfo): Boolean;
begin
  GetHintColor(HintInfo, Self, FHintColor);
  if FHintWindowClass <> nil then
    HintInfo.HintWindowClass := FHintWindowClass;
  Result := BaseWndProcEx(CM_HINTSHOW, 0, HintInfo) <> 0;
end;

procedure TJvExWinControl.MouseEnter(AControl: TControl);
begin
  FMouseOver := True;
  if Assigned(FOnMouseEnter) then
    FOnMouseEnter(Self);
  BaseWndProc(CM_MOUSEENTER, 0, AControl);
end;

procedure TJvExWinControl.MouseLeave(AControl: TControl);
begin
  FMouseOver := False;
  BaseWndProc(CM_MOUSELEAVE, 0, AControl);
  if Assigned(FOnMouseLeave) then
    FOnMouseLeave(Self);
end;

{$IFNDEF CLR}
procedure TJvExWinControl.FocusChanged(AControl: TWinControl);
begin
  BaseWndProc(CM_FOCUSCHANGED, 0, AControl);
end;
{$ENDIF !CLR}

{$IFDEF COMPILER5}
{$IFNDEF HASAUTOSIZE}

procedure TJvExWinControl.CMSetAutoSize(var Msg: TMessage);
begin
  SetAutoSize(Msg.WParam <> 0);
end;

procedure TJvExWinControl.SetAutoSize(Value: Boolean);
begin
  TOpenControl_SetAutoSize(Self, Value);
end;

{$ENDIF !HASAUTOSIZE}
{$ENDIF COMPILER5}

procedure TJvExWinControl.BoundsChanged;
begin
end;

procedure TJvExWinControl.CursorChanged;
begin
  BaseWndProc(CM_CURSORCHANGED);
end;

procedure TJvExWinControl.ShowingChanged;
begin
  BaseWndProc(CM_SHOWINGCHANGED);
end;

procedure TJvExWinControl.ShowHintChanged;
begin
  BaseWndProc(CM_SHOWHINTCHANGED);
end;

{$IFNDEF CLR}
{ VCL sends CM_CONTROLLISTCHANGE and CM_CONTROLCHANGE in a different order than
  the CLX methods are used. So we must correct it by evaluating "Inserting". }
procedure TJvExWinControl.ControlsListChanging(Control: TControl; Inserting: Boolean);
begin
  if Inserting then
    BaseWndProc(CM_CONTROLLISTCHANGE, Integer(Control), Integer(Inserting))
  else
    BaseWndProc(CM_CONTROLCHANGE, Integer(Control), Integer(Inserting));
end;

procedure TJvExWinControl.ControlsListChanged(Control: TControl; Inserting: Boolean);
begin
  if not Inserting then
    BaseWndProc(CM_CONTROLLISTCHANGE, Integer(Control), Integer(Inserting))
  else
    BaseWndProc(CM_CONTROLCHANGE, Integer(Control), Integer(Inserting));
end;
{$ENDIF !CLR}

procedure TJvExWinControl.GetDlgCode(var Code: TDlgCodes);
begin
end;

procedure TJvExWinControl.FocusSet(PrevWnd: THandle);
begin
  BaseWndProc(WM_SETFOCUS, Integer(PrevWnd), 0);
end;

procedure TJvExWinControl.FocusKilled(NextWnd: THandle);
begin
  BaseWndProc(WM_KILLFOCUS, Integer(NextWnd), 0);
end;

function TJvExWinControl.DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean;
begin
  Result := BaseWndProc(WM_ERASEBKGND, Canvas.Handle, Param) <> 0;
end;

{$IFDEF JVCLThemesEnabledD56}
function TJvExWinControl.GetParentBackground: Boolean;
begin
  Result := JvThemes.GetParentBackground(Self);
end;

procedure TJvExWinControl.SetParentBackground(Value: Boolean);
begin
  JvThemes.SetParentBackground(Self, Value);
end;
{$ENDIF JVCLThemesEnabledD56}

procedure TJvExWinControl.WndProc(var Msg: TMessage);
var
  IdSaveDC: Integer;
  DlgCodes: TDlgCodes;
  Canvas: TCanvas;
  {$IFDEF CLR}
  AHintInfo: THintInfo;
  {$ENDIF CLR}
begin
  if not DispatchIsDesignMsg(Self, Msg) then
  begin
    case Msg.Msg of
      CM_DENYSUBCLASSING:
      {$IFNDEF CLR}
      Msg.Result := Ord(GetInterfaceEntry(IJvDenySubClassing) <> nil);
      {$ELSE}
      Msg.Result := Integer(Supports(Self, IJvDenySubClassing));
      {$ENDIF !CLR}
    CM_DIALOGCHAR:
      with TCMDialogChar{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Ord(WantKey(CharCode, KeyDataToShiftState(KeyData), WideChar(CharCode)));
    CM_HINTSHOW:
      {$IFNDEF CLR}
      with TCMHintShow(Msg) do
        Result := Integer(HintShow(HintInfo^));
      {$ELSE}
      with TCMHintShow.Create(Msg) do
      begin
        AHintInfo := HintInfo;
        Result := Integer(HintShow(AHintInfo));
        HintInfo := AHintInfo;
      end;
      {$ENDIF !CLR}
    CM_HITTEST:
      with TCMHitTest{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Integer(HitTest(XPos, YPos));
    CM_MOUSEENTER:
      MouseEnter({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_MOUSELEAVE:
      MouseLeave({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_VISIBLECHANGED:
      VisibleChanged;
    CM_ENABLEDCHANGED:
      EnabledChanged;
    CM_TEXTCHANGED:
      TextChanged;
    CM_FONTCHANGED:
      FontChanged;
    CM_COLORCHANGED:
      ColorChanged;
    {$IFNDEF CLR}
    CM_FOCUSCHANGED:
      FocusChanged(TWinControl(Msg.LParam));
    {$ENDIF !CLR}
    CM_PARENTFONTCHANGED:
      ParentFontChanged;
    CM_PARENTCOLORCHANGED:
      ParentColorChanged;
    CM_PARENTSHOWHINTCHANGED:
      ParentShowHintChanged;
    CM_CURSORCHANGED:
      CursorChanged;
    CM_SHOWINGCHANGED:
      ShowingChanged;
    CM_SHOWHINTCHANGED:
      ShowHintChanged;
    {$IFNDEF CLR}
    CM_CONTROLLISTCHANGE:
      if Msg.LParam <> 0 then
        ControlsListChanging(TControl(Msg.WParam), True)
      else
        ControlsListChanged(TControl(Msg.WParam), False);
    CM_CONTROLCHANGE:
      if Msg.LParam = 0 then
        ControlsListChanging(TControl(Msg.WParam), False)
      else
        ControlsListChanged(TControl(Msg.WParam), True);
    {$ENDIF !CLR}
    WM_SETFOCUS:
      FocusSet(THandle(Msg.WParam));
    WM_KILLFOCUS:
      FocusKilled(THandle(Msg.WParam));
    WM_SIZE:
      begin
        inherited WndProc(Msg);
        BoundsChanged;
      end;
    WM_ERASEBKGND:
      if Msg.WParam <> 0 then
      begin
        IdSaveDC := SaveDC(HDC(Msg.WParam)); // protect DC against Stock-Objects from Canvas
        Canvas := TCanvas.Create;
        try
          Canvas.Handle := HDC(Msg.WParam);
          Msg.Result := Ord(DoEraseBackground(Canvas, Msg.LParam));
        finally
          Canvas.Handle := 0;
          Canvas.Free;
          RestoreDC(HDC(Msg.WParam), IdSaveDC);
        end;
      end
      else
        inherited WndProc(Msg);
    {$IFNDEF DELPHI2007_UP}
    WM_PRINTCLIENT, WM_PRINT: // VCL bug fix
      begin
        IdSaveDC := SaveDC(HDC(Msg.WParam)); // protect DC against changes
        try
          inherited WndProc(Msg);
        finally
          RestoreDC(HDC(Msg.WParam), IdSaveDC);
        end;
      end;
    {$ENDIF ~DELPHI2007_UP}
    WM_GETDLGCODE:
      begin
        inherited WndProc(Msg);
        DlgCodes := [dcNative] + DlgcToDlgCodes(Msg.Result);
        GetDlgCode(DlgCodes);
        if not (dcNative in DlgCodes) then
          Msg.Result := DlgCodesToDlgc(DlgCodes);
      end;
    else
      inherited WndProc(Msg);
    end;
    case Msg.Msg of // precheck message to prevent access violations on released controls
      CM_MOUSEENTER, CM_MOUSELEAVE, WM_KILLFOCUS, WM_SETFOCUS, WM_NCPAINT:
        if DotNetHighlighting then
          HandleDotNetHighlighting(Self, Msg, MouseOver, Color);
    end;
  end;
end;

//============================================================================

constructor TJvExGraphicControl.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  FHintColor := clDefault;
end;

function TJvExGraphicControl.BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExGraphicControl.BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExGraphicControl.BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
var
  Mesg: TStructPtrMessage;
begin
  Mesg := TStructPtrMessage.Create(Msg, WParam, LParam);
  try
    inherited WndProc(Mesg.Msg);
  finally
    Result := Mesg.Msg.Result;
    Mesg.Free;
  end;
end;

procedure TJvExGraphicControl.VisibleChanged;
begin
  BaseWndProc(CM_VISIBLECHANGED);
end;

procedure TJvExGraphicControl.EnabledChanged;
begin
  BaseWndProc(CM_ENABLEDCHANGED);
end;

procedure TJvExGraphicControl.TextChanged;
begin
  BaseWndProc(CM_TEXTCHANGED);
end;

procedure TJvExGraphicControl.FontChanged;
begin
  BaseWndProc(CM_FONTCHANGED);
end;

procedure TJvExGraphicControl.ColorChanged;
begin
  BaseWndProc(CM_COLORCHANGED);
end;

procedure TJvExGraphicControl.ParentFontChanged;
begin
  BaseWndProc(CM_PARENTFONTCHANGED);
end;

procedure TJvExGraphicControl.ParentColorChanged;
begin
  BaseWndProc(CM_PARENTCOLORCHANGED);
  if Assigned(OnParentColorChange) then
    OnParentColorChange(Self);
end;

procedure TJvExGraphicControl.ParentShowHintChanged;
begin
  BaseWndProc(CM_PARENTSHOWHINTCHANGED);
end;

function TJvExGraphicControl.WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean;
begin
  Result := BaseWndProc(CM_DIALOGCHAR, Word(Key), ShiftStateToKeyData(Shift)) <> 0;
end;

function TJvExGraphicControl.HitTest(X, Y: Integer): Boolean;
begin
  Result := BaseWndProc(CM_HITTEST, 0, SmallPointToLong(PointToSmallPoint(Point(X, Y)))) <> 0;
end;

function TJvExGraphicControl.HintShow(var HintInfo: THintInfo): Boolean;
begin
  GetHintColor(HintInfo, Self, FHintColor);
  if FHintWindowClass <> nil then
    HintInfo.HintWindowClass := FHintWindowClass;
  Result := BaseWndProcEx(CM_HINTSHOW, 0, HintInfo) <> 0;
end;

procedure TJvExGraphicControl.MouseEnter(AControl: TControl);
begin
  FMouseOver := True;
  if Assigned(FOnMouseEnter) then
    FOnMouseEnter(Self);
  BaseWndProc(CM_MOUSEENTER, 0, AControl);
end;

procedure TJvExGraphicControl.MouseLeave(AControl: TControl);
begin
  FMouseOver := False;
  BaseWndProc(CM_MOUSELEAVE, 0, AControl);
  if Assigned(FOnMouseLeave) then
    FOnMouseLeave(Self);
end;

{$IFNDEF CLR}
procedure TJvExGraphicControl.FocusChanged(AControl: TWinControl);
begin
  BaseWndProc(CM_FOCUSCHANGED, 0, AControl);
end;
{$ENDIF !CLR}

{$IFDEF COMPILER5}
{$IFNDEF HASAUTOSIZE}

procedure TJvExGraphicControl.CMSetAutoSize(var Msg: TMessage);
begin
  SetAutoSize(Msg.WParam <> 0);
end;

procedure TJvExGraphicControl.SetAutoSize(Value: Boolean);
begin
  TOpenControl_SetAutoSize(Self, Value);
end;

{$ENDIF !HASAUTOSIZE}
{$ENDIF COMPILER5}

procedure TJvExGraphicControl.WndProc(var Msg: TMessage);
{$IFDEF CLR}
var
  AHintInfo: THintInfo;
{$ENDIF CLR}
begin
  if not DispatchIsDesignMsg(Self, Msg) then
  case Msg.Msg of
    CM_DENYSUBCLASSING:
      {$IFNDEF CLR}
      Msg.Result := Ord(GetInterfaceEntry(IJvDenySubClassing) <> nil);
      {$ELSE}
      Msg.Result := Integer(Supports(Self, IJvDenySubClassing));
      {$ENDIF !CLR}
    CM_DIALOGCHAR:
      with TCMDialogChar{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Ord(WantKey(CharCode, KeyDataToShiftState(KeyData), WideChar(CharCode)));
    CM_HINTSHOW:
      {$IFNDEF CLR}
      with TCMHintShow(Msg) do
        Result := Integer(HintShow(HintInfo^));
      {$ELSE}
      with TCMHintShow.Create(Msg) do
      begin
        AHintInfo := HintInfo;
        Result := Integer(HintShow(AHintInfo));
        HintInfo := AHintInfo;
      end;
      {$ENDIF !CLR}
    CM_HITTEST:
      with TCMHitTest{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Integer(HitTest(XPos, YPos));
    CM_MOUSEENTER:
      MouseEnter({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_MOUSELEAVE:
      MouseLeave({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_VISIBLECHANGED:
      VisibleChanged;
    CM_ENABLEDCHANGED:
      EnabledChanged;
    CM_TEXTCHANGED:
      TextChanged;
    CM_FONTCHANGED:
      FontChanged;
    CM_COLORCHANGED:
      ColorChanged;
    {$IFNDEF CLR}
    CM_FOCUSCHANGED:
      FocusChanged(TWinControl(Msg.LParam));
    {$ENDIF !CLR}
    CM_PARENTFONTCHANGED:
      ParentFontChanged;
    CM_PARENTCOLORCHANGED:
      ParentColorChanged;
    CM_PARENTSHOWHINTCHANGED:
      ParentShowHintChanged;
  else
    inherited WndProc(Msg);
  end;
end;

//============================================================================

constructor TJvExCustomControl.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  FHintColor := clDefault;
end;

function TJvExCustomControl.BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExCustomControl.BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExCustomControl.BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
var
  Mesg: TStructPtrMessage;
begin
  Mesg := TStructPtrMessage.Create(Msg, WParam, LParam);
  try
    inherited WndProc(Mesg.Msg);
  finally
    Result := Mesg.Msg.Result;
    Mesg.Free;
  end;
end;

procedure TJvExCustomControl.VisibleChanged;
begin
  BaseWndProc(CM_VISIBLECHANGED);
end;

procedure TJvExCustomControl.EnabledChanged;
begin
  BaseWndProc(CM_ENABLEDCHANGED);
end;

procedure TJvExCustomControl.TextChanged;
begin
  BaseWndProc(CM_TEXTCHANGED);
end;

procedure TJvExCustomControl.FontChanged;
begin
  BaseWndProc(CM_FONTCHANGED);
end;

procedure TJvExCustomControl.ColorChanged;
begin
  BaseWndProc(CM_COLORCHANGED);
end;

procedure TJvExCustomControl.ParentFontChanged;
begin
  BaseWndProc(CM_PARENTFONTCHANGED);
end;

procedure TJvExCustomControl.ParentColorChanged;
begin
  BaseWndProc(CM_PARENTCOLORCHANGED);
  if Assigned(OnParentColorChange) then
    OnParentColorChange(Self);
end;

procedure TJvExCustomControl.ParentShowHintChanged;
begin
  BaseWndProc(CM_PARENTSHOWHINTCHANGED);
end;

function TJvExCustomControl.WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean;
begin
  Result := BaseWndProc(CM_DIALOGCHAR, Word(Key), ShiftStateToKeyData(Shift)) <> 0;
end;

function TJvExCustomControl.HitTest(X, Y: Integer): Boolean;
begin
  Result := BaseWndProc(CM_HITTEST, 0, SmallPointToLong(PointToSmallPoint(Point(X, Y)))) <> 0;
end;

function TJvExCustomControl.HintShow(var HintInfo: THintInfo): Boolean;
begin
  GetHintColor(HintInfo, Self, FHintColor);
  if FHintWindowClass <> nil then
    HintInfo.HintWindowClass := FHintWindowClass;
  Result := BaseWndProcEx(CM_HINTSHOW, 0, HintInfo) <> 0;
end;

procedure TJvExCustomControl.MouseEnter(AControl: TControl);
begin
  FMouseOver := True;
  if Assigned(FOnMouseEnter) then
    FOnMouseEnter(Self);
  BaseWndProc(CM_MOUSEENTER, 0, AControl);
end;

procedure TJvExCustomControl.MouseLeave(AControl: TControl);
begin
  FMouseOver := False;
  BaseWndProc(CM_MOUSELEAVE, 0, AControl);
  if Assigned(FOnMouseLeave) then
    FOnMouseLeave(Self);
end;

{$IFNDEF CLR}
procedure TJvExCustomControl.FocusChanged(AControl: TWinControl);
begin
  BaseWndProc(CM_FOCUSCHANGED, 0, AControl);
end;
{$ENDIF !CLR}

{$IFDEF COMPILER5}
{$IFNDEF HASAUTOSIZE}

procedure TJvExCustomControl.CMSetAutoSize(var Msg: TMessage);
begin
  SetAutoSize(Msg.WParam <> 0);
end;

procedure TJvExCustomControl.SetAutoSize(Value: Boolean);
begin
  TOpenControl_SetAutoSize(Self, Value);
end;

{$ENDIF !HASAUTOSIZE}
{$ENDIF COMPILER5}

procedure TJvExCustomControl.BoundsChanged;
begin
end;

procedure TJvExCustomControl.CursorChanged;
begin
  BaseWndProc(CM_CURSORCHANGED);
end;

procedure TJvExCustomControl.ShowingChanged;
begin
  BaseWndProc(CM_SHOWINGCHANGED);
end;

procedure TJvExCustomControl.ShowHintChanged;
begin
  BaseWndProc(CM_SHOWHINTCHANGED);
end;

{$IFNDEF CLR}
{ VCL sends CM_CONTROLLISTCHANGE and CM_CONTROLCHANGE in a different order than
  the CLX methods are used. So we must correct it by evaluating "Inserting". }
procedure TJvExCustomControl.ControlsListChanging(Control: TControl; Inserting: Boolean);
begin
  if Inserting then
    BaseWndProc(CM_CONTROLLISTCHANGE, Integer(Control), Integer(Inserting))
  else
    BaseWndProc(CM_CONTROLCHANGE, Integer(Control), Integer(Inserting));
end;

procedure TJvExCustomControl.ControlsListChanged(Control: TControl; Inserting: Boolean);
begin
  if not Inserting then
    BaseWndProc(CM_CONTROLLISTCHANGE, Integer(Control), Integer(Inserting))
  else
    BaseWndProc(CM_CONTROLCHANGE, Integer(Control), Integer(Inserting));
end;
{$ENDIF !CLR}

procedure TJvExCustomControl.GetDlgCode(var Code: TDlgCodes);
begin
end;

procedure TJvExCustomControl.FocusSet(PrevWnd: THandle);
begin
  BaseWndProc(WM_SETFOCUS, Integer(PrevWnd), 0);
end;

procedure TJvExCustomControl.FocusKilled(NextWnd: THandle);
begin
  BaseWndProc(WM_KILLFOCUS, Integer(NextWnd), 0);
end;

function TJvExCustomControl.DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean;
begin
  Result := BaseWndProc(WM_ERASEBKGND, Canvas.Handle, Param) <> 0;
end;

{$IFDEF JVCLThemesEnabledD56}
function TJvExCustomControl.GetParentBackground: Boolean;
begin
  Result := JvThemes.GetParentBackground(Self);
end;

procedure TJvExCustomControl.SetParentBackground(Value: Boolean);
begin
  JvThemes.SetParentBackground(Self, Value);
end;
{$ENDIF JVCLThemesEnabledD56}

procedure TJvExCustomControl.WndProc(var Msg: TMessage);
var
  IdSaveDC: Integer;
  DlgCodes: TDlgCodes;
  Canvas: TCanvas;
  {$IFDEF CLR}
  AHintInfo: THintInfo;
  {$ENDIF CLR}
begin
  if not DispatchIsDesignMsg(Self, Msg) then
  begin
    case Msg.Msg of
      CM_DENYSUBCLASSING:
      {$IFNDEF CLR}
      Msg.Result := Ord(GetInterfaceEntry(IJvDenySubClassing) <> nil);
      {$ELSE}
      Msg.Result := Integer(Supports(Self, IJvDenySubClassing));
      {$ENDIF !CLR}
    CM_DIALOGCHAR:
      with TCMDialogChar{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Ord(WantKey(CharCode, KeyDataToShiftState(KeyData), WideChar(CharCode)));
    CM_HINTSHOW:
      {$IFNDEF CLR}
      with TCMHintShow(Msg) do
        Result := Integer(HintShow(HintInfo^));
      {$ELSE}
      with TCMHintShow.Create(Msg) do
      begin
        AHintInfo := HintInfo;
        Result := Integer(HintShow(AHintInfo));
        HintInfo := AHintInfo;
      end;
      {$ENDIF !CLR}
    CM_HITTEST:
      with TCMHitTest{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Integer(HitTest(XPos, YPos));
    CM_MOUSEENTER:
      MouseEnter({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_MOUSELEAVE:
      MouseLeave({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_VISIBLECHANGED:
      VisibleChanged;
    CM_ENABLEDCHANGED:
      EnabledChanged;
    CM_TEXTCHANGED:
      TextChanged;
    CM_FONTCHANGED:
      FontChanged;
    CM_COLORCHANGED:
      ColorChanged;
    {$IFNDEF CLR}
    CM_FOCUSCHANGED:
      FocusChanged(TWinControl(Msg.LParam));
    {$ENDIF !CLR}
    CM_PARENTFONTCHANGED:
      ParentFontChanged;
    CM_PARENTCOLORCHANGED:
      ParentColorChanged;
    CM_PARENTSHOWHINTCHANGED:
      ParentShowHintChanged;
    CM_CURSORCHANGED:
      CursorChanged;
    CM_SHOWINGCHANGED:
      ShowingChanged;
    CM_SHOWHINTCHANGED:
      ShowHintChanged;
    {$IFNDEF CLR}
    CM_CONTROLLISTCHANGE:
      if Msg.LParam <> 0 then
        ControlsListChanging(TControl(Msg.WParam), True)
      else
        ControlsListChanged(TControl(Msg.WParam), False);
    CM_CONTROLCHANGE:
      if Msg.LParam = 0 then
        ControlsListChanging(TControl(Msg.WParam), False)
      else
        ControlsListChanged(TControl(Msg.WParam), True);
    {$ENDIF !CLR}
    WM_SETFOCUS:
      FocusSet(THandle(Msg.WParam));
    WM_KILLFOCUS:
      FocusKilled(THandle(Msg.WParam));
    WM_SIZE:
      begin
        inherited WndProc(Msg);
        BoundsChanged;
      end;
    WM_ERASEBKGND:
      if Msg.WParam <> 0 then
      begin
        IdSaveDC := SaveDC(HDC(Msg.WParam)); // protect DC against Stock-Objects from Canvas
        Canvas := TCanvas.Create;
        try
          Canvas.Handle := HDC(Msg.WParam);
          Msg.Result := Ord(DoEraseBackground(Canvas, Msg.LParam));
        finally
          Canvas.Handle := 0;
          Canvas.Free;
          RestoreDC(HDC(Msg.WParam), IdSaveDC);
        end;
      end
      else
        inherited WndProc(Msg);
    {$IFNDEF DELPHI2007_UP}
    WM_PRINTCLIENT, WM_PRINT: // VCL bug fix
      begin
        IdSaveDC := SaveDC(HDC(Msg.WParam)); // protect DC against changes
        try
          inherited WndProc(Msg);
        finally
          RestoreDC(HDC(Msg.WParam), IdSaveDC);
        end;
      end;
    {$ENDIF ~DELPHI2007_UP}
    WM_GETDLGCODE:
      begin
        inherited WndProc(Msg);
        DlgCodes := [dcNative] + DlgcToDlgCodes(Msg.Result);
        GetDlgCode(DlgCodes);
        if not (dcNative in DlgCodes) then
          Msg.Result := DlgCodesToDlgc(DlgCodes);
      end;
    else
      inherited WndProc(Msg);
    end;
    case Msg.Msg of // precheck message to prevent access violations on released controls
      CM_MOUSEENTER, CM_MOUSELEAVE, WM_KILLFOCUS, WM_SETFOCUS, WM_NCPAINT:
        if DotNetHighlighting then
          HandleDotNetHighlighting(Self, Msg, MouseOver, Color);
    end;
  end;
end;

//============================================================================

constructor TJvExHintWindow.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  FHintColor := clDefault;
end;

function TJvExHintWindow.BaseWndProc(Msg: Integer; WParam: Integer = 0; LParam: Longint = 0): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExHintWindow.BaseWndProc(Msg: Integer; WParam: Integer; LParam: TControl): Integer;
var
  Mesg: TMessage;
begin
  Mesg := CreateWMMessage(Msg, WParam, LParam);
  inherited WndProc(Mesg);
  Result := Mesg.Result;
end;

function TJvExHintWindow.BaseWndProcEx(Msg: Integer; WParam: Integer; var LParam): Integer;
var
  Mesg: TStructPtrMessage;
begin
  Mesg := TStructPtrMessage.Create(Msg, WParam, LParam);
  try
    inherited WndProc(Mesg.Msg);
  finally
    Result := Mesg.Msg.Result;
    Mesg.Free;
  end;
end;

procedure TJvExHintWindow.VisibleChanged;
begin
  BaseWndProc(CM_VISIBLECHANGED);
end;

procedure TJvExHintWindow.EnabledChanged;
begin
  BaseWndProc(CM_ENABLEDCHANGED);
end;

procedure TJvExHintWindow.TextChanged;
begin
  BaseWndProc(CM_TEXTCHANGED);
end;

procedure TJvExHintWindow.FontChanged;
begin
  BaseWndProc(CM_FONTCHANGED);
end;

procedure TJvExHintWindow.ColorChanged;
begin
  BaseWndProc(CM_COLORCHANGED);
end;

procedure TJvExHintWindow.ParentFontChanged;
begin
  BaseWndProc(CM_PARENTFONTCHANGED);
end;

procedure TJvExHintWindow.ParentColorChanged;
begin
  BaseWndProc(CM_PARENTCOLORCHANGED);
  if Assigned(OnParentColorChange) then
    OnParentColorChange(Self);
end;

procedure TJvExHintWindow.ParentShowHintChanged;
begin
  BaseWndProc(CM_PARENTSHOWHINTCHANGED);
end;

function TJvExHintWindow.WantKey(Key: Integer; Shift: TShiftState; const KeyText: WideString): Boolean;
begin
  Result := BaseWndProc(CM_DIALOGCHAR, Word(Key), ShiftStateToKeyData(Shift)) <> 0;
end;

function TJvExHintWindow.HitTest(X, Y: Integer): Boolean;
begin
  Result := BaseWndProc(CM_HITTEST, 0, SmallPointToLong(PointToSmallPoint(Point(X, Y)))) <> 0;
end;

function TJvExHintWindow.HintShow(var HintInfo: THintInfo): Boolean;
begin
  GetHintColor(HintInfo, Self, FHintColor);
  if FHintWindowClass <> nil then
    HintInfo.HintWindowClass := FHintWindowClass;
  Result := BaseWndProcEx(CM_HINTSHOW, 0, HintInfo) <> 0;
end;

procedure TJvExHintWindow.MouseEnter(AControl: TControl);
begin
  FMouseOver := True;
  if Assigned(FOnMouseEnter) then
    FOnMouseEnter(Self);
  BaseWndProc(CM_MOUSEENTER, 0, AControl);
end;

procedure TJvExHintWindow.MouseLeave(AControl: TControl);
begin
  FMouseOver := False;
  BaseWndProc(CM_MOUSELEAVE, 0, AControl);
  if Assigned(FOnMouseLeave) then
    FOnMouseLeave(Self);
end;

{$IFNDEF CLR}
procedure TJvExHintWindow.FocusChanged(AControl: TWinControl);
begin
  BaseWndProc(CM_FOCUSCHANGED, 0, AControl);
end;
{$ENDIF !CLR}

{$IFDEF COMPILER5}
{$IFNDEF HASAUTOSIZE}

procedure TJvExHintWindow.CMSetAutoSize(var Msg: TMessage);
begin
  SetAutoSize(Msg.WParam <> 0);
end;

procedure TJvExHintWindow.SetAutoSize(Value: Boolean);
begin
  TOpenControl_SetAutoSize(Self, Value);
end;

{$ENDIF !HASAUTOSIZE}
{$ENDIF COMPILER5}

procedure TJvExHintWindow.BoundsChanged;
begin
end;

procedure TJvExHintWindow.CursorChanged;
begin
  BaseWndProc(CM_CURSORCHANGED);
end;

procedure TJvExHintWindow.ShowingChanged;
begin
  BaseWndProc(CM_SHOWINGCHANGED);
end;

procedure TJvExHintWindow.ShowHintChanged;
begin
  BaseWndProc(CM_SHOWHINTCHANGED);
end;

{$IFNDEF CLR}
{ VCL sends CM_CONTROLLISTCHANGE and CM_CONTROLCHANGE in a different order than
  the CLX methods are used. So we must correct it by evaluating "Inserting". }
procedure TJvExHintWindow.ControlsListChanging(Control: TControl; Inserting: Boolean);
begin
  if Inserting then
    BaseWndProc(CM_CONTROLLISTCHANGE, Integer(Control), Integer(Inserting))
  else
    BaseWndProc(CM_CONTROLCHANGE, Integer(Control), Integer(Inserting));
end;

procedure TJvExHintWindow.ControlsListChanged(Control: TControl; Inserting: Boolean);
begin
  if not Inserting then
    BaseWndProc(CM_CONTROLLISTCHANGE, Integer(Control), Integer(Inserting))
  else
    BaseWndProc(CM_CONTROLCHANGE, Integer(Control), Integer(Inserting));
end;
{$ENDIF !CLR}

procedure TJvExHintWindow.GetDlgCode(var Code: TDlgCodes);
begin
end;

procedure TJvExHintWindow.FocusSet(PrevWnd: THandle);
begin
  BaseWndProc(WM_SETFOCUS, Integer(PrevWnd), 0);
end;

procedure TJvExHintWindow.FocusKilled(NextWnd: THandle);
begin
  BaseWndProc(WM_KILLFOCUS, Integer(NextWnd), 0);
end;

function TJvExHintWindow.DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean;
begin
  Result := BaseWndProc(WM_ERASEBKGND, Canvas.Handle, Param) <> 0;
end;

{$IFDEF JVCLThemesEnabledD56}
function TJvExHintWindow.GetParentBackground: Boolean;
begin
  Result := JvThemes.GetParentBackground(Self);
end;

procedure TJvExHintWindow.SetParentBackground(Value: Boolean);
begin
  JvThemes.SetParentBackground(Self, Value);
end;
{$ENDIF JVCLThemesEnabledD56}

procedure TJvExHintWindow.WndProc(var Msg: TMessage);
var
  IdSaveDC: Integer;
  DlgCodes: TDlgCodes;
  Canvas: TCanvas;
  {$IFDEF CLR}
  AHintInfo: THintInfo;
  {$ENDIF CLR}
begin
  if not DispatchIsDesignMsg(Self, Msg) then
  begin
    case Msg.Msg of
      CM_DENYSUBCLASSING:
      {$IFNDEF CLR}
      Msg.Result := Ord(GetInterfaceEntry(IJvDenySubClassing) <> nil);
      {$ELSE}
      Msg.Result := Integer(Supports(Self, IJvDenySubClassing));
      {$ENDIF !CLR}
    CM_DIALOGCHAR:
      with TCMDialogChar{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Ord(WantKey(CharCode, KeyDataToShiftState(KeyData), WideChar(CharCode)));
    CM_HINTSHOW:
      {$IFNDEF CLR}
      with TCMHintShow(Msg) do
        Result := Integer(HintShow(HintInfo^));
      {$ELSE}
      with TCMHintShow.Create(Msg) do
      begin
        AHintInfo := HintInfo;
        Result := Integer(HintShow(AHintInfo));
        HintInfo := AHintInfo;
      end;
      {$ENDIF !CLR}
    CM_HITTEST:
      with TCMHitTest{$IFDEF CLR}.Create{$ENDIF}(Msg) do
        Result := Integer(HitTest(XPos, YPos));
    CM_MOUSEENTER:
      MouseEnter({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_MOUSELEAVE:
      MouseLeave({$IFDEF CLR}nil{$ELSE}TControl(Msg.LParam){$ENDIF});
    CM_VISIBLECHANGED:
      VisibleChanged;
    CM_ENABLEDCHANGED:
      EnabledChanged;
    CM_TEXTCHANGED:
      TextChanged;
    CM_FONTCHANGED:
      FontChanged;
    CM_COLORCHANGED:
      ColorChanged;
    {$IFNDEF CLR}
    CM_FOCUSCHANGED:
      FocusChanged(TWinControl(Msg.LParam));
    {$ENDIF !CLR}
    CM_PARENTFONTCHANGED:
      ParentFontChanged;
    CM_PARENTCOLORCHANGED:
      ParentColorChanged;
    CM_PARENTSHOWHINTCHANGED:
      ParentShowHintChanged;
    CM_CURSORCHANGED:
      CursorChanged;
    CM_SHOWINGCHANGED:
      ShowingChanged;
    CM_SHOWHINTCHANGED:
      ShowHintChanged;
    {$IFNDEF CLR}
    CM_CONTROLLISTCHANGE:
      if Msg.LParam <> 0 then
        ControlsListChanging(TControl(Msg.WParam), True)
      else
        ControlsListChanged(TControl(Msg.WParam), False);
    CM_CONTROLCHANGE:
      if Msg.LParam = 0 then
        ControlsListChanging(TControl(Msg.WParam), False)
      else
        ControlsListChanged(TControl(Msg.WParam), True);
    {$ENDIF !CLR}
    WM_SETFOCUS:
      FocusSet(THandle(Msg.WParam));
    WM_KILLFOCUS:
      FocusKilled(THandle(Msg.WParam));
    WM_SIZE:
      begin
        inherited WndProc(Msg);
        BoundsChanged;
      end;
    WM_ERASEBKGND:
      if Msg.WParam <> 0 then
      begin
        IdSaveDC := SaveDC(HDC(Msg.WParam)); // protect DC against Stock-Objects from Canvas
        Canvas := TCanvas.Create;
        try
          Canvas.Handle := HDC(Msg.WParam);
          Msg.Result := Ord(DoEraseBackground(Canvas, Msg.LParam));
        finally
          Canvas.Handle := 0;
          Canvas.Free;
          RestoreDC(HDC(Msg.WParam), IdSaveDC);
        end;
      end
      else
        inherited WndProc(Msg);
    {$IFNDEF DELPHI2007_UP}
    WM_PRINTCLIENT, WM_PRINT: // VCL bug fix
      begin
        IdSaveDC := SaveDC(HDC(Msg.WParam)); // protect DC against changes
        try
          inherited WndProc(Msg);
        finally
          RestoreDC(HDC(Msg.WParam), IdSaveDC);
        end;
      end;
    {$ENDIF ~DELPHI2007_UP}
    WM_GETDLGCODE:
      begin
        inherited WndProc(Msg);
        DlgCodes := [dcNative] + DlgcToDlgCodes(Msg.Result);
        GetDlgCode(DlgCodes);
        if not (dcNative in DlgCodes) then
          Msg.Result := DlgCodesToDlgc(DlgCodes);
      end;
    else
      inherited WndProc(Msg);
    end;
    case Msg.Msg of // precheck message to prevent access violations on released controls
      CM_MOUSEENTER, CM_MOUSELEAVE, WM_KILLFOCUS, WM_SETFOCUS, WM_NCPAINT:
        if DotNetHighlighting then
          HandleDotNetHighlighting(Self, Msg, MouseOver, Color);
    end;
  end;
end;

//============================================================================

initialization
  {$IFDEF UNITVERSIONING}
  RegisterUnitVersion(HInstance, UnitVersioning);
  {$ENDIF UNITVERSIONING}
  {$IFDEF COMPILER5}
  InitHookVars;
  InstallProcHook(TControl_SetAutoSize, @SetAutoSizeHook, @OrgSetAutoSize);
  {$ENDIF COMPILER5}

finalization
  {$IFDEF COMPILER5}
  UninstallProcHook(@OrgSetAutoSize);
  {$ENDIF COMPILER5}
  {$IFDEF UNITVERSIONING}
  UnregisterUnitVersion(HInstance);
  {$ENDIF UNITVERSIONING}

end.

